AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

Fix regression caused by supporting inlining accesses to non-JSObjects

Browse Source 
TBR=dcarney@chromium.org
BUG=

Review URL: https://codereview.chromium.org/150983002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
verwaest@chromium.org 2014-01-31 00:29:04 +00:00
parent 02d8dc57c1
commit bef13f739c
2 changed files with 38 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/hydrogen.cc
View File

@ -6714,7 +6714,7 @@ HValue* HOptimizedGraphBuilder::HandleKeyedElementAccess(
if (monomorphic) {
Handle<Map> map = types->first();
if (map->has_slow_elements_kind()) {
if (map->has_slow_elements_kind() || !map->IsJSObjectMap()) {
instr = is_store ? BuildStoreKeyedGeneric(obj, key, val)
: BuildLoadKeyedGeneric(obj, key);
AddInstruction(instr);

37
test/mjsunit/regress/regress-keyed-access-string-length.js Normal file
View File

@ -0,0 +1,37 @@
// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --allow-natives-syntax
function f(i) {
return "abc"[i];
}
f("length");
f("length");
%OptimizeFunctionOnNextCall(f);
f("length");